Someone familiar with connecting a sensor to read the water meter using an ‘npn sensor’.
In the link there is an explanation but it is not for this platform. Would like the same.
https://ehoco.nl/watermeter-uitlezen-in-domoticz-python-script/
It outputs a pulse every litre.
Use a GPIO binary sensor to trigger an automation to increment a counter. That will show the total volume in L.
oké, will try that.
don’t know how to start but, will find a way.
also I have to find a way to make a history of water consumption.
is there anyone how already Re-inventing the wheel?
ESPhome and the PulseCounter Sensor and an ESP32 or ESP8266 microprocessor make this a fun and relatively simple project.
With the ESP micro, connecting the NPN inductive sensor is very similar to connecting with the Raspberry Pi. Blue wire to GROUND/GND, black wire to any of the IOnn GPIO pins, and the brown wire to 5VDC power. Then, in the ESPHome plugin, the yaml would look similar to this:
esphome:
name: water_meter
platform: ESP8266
board: d1_mini
# Enable logging
#
logger:
level: DEBUG
sensor:
- platform: pulse_counter
pin: GPIO5
unit_of_measurement: 'litre'
name: 'Water Meter'
filters:
- multiply: 0.06
wifi:
ssid: "YOUR_SSID"
password: "YourWifiPassword"
fast_connect: true
# Enable Home Assistant API
api:
password: "another_password"
ota:
password: "another_password"
This example shows the black sensor/signal wire connected on GPIO5/IO5 on a Wemos D1 ESP8266 microprocessor. You should adjust the filters/multiply decimal value to match the actual results for your specific water meter.
Hope this helps!!
2 Likes
This my config in ESPhome
sensor:
- platform: pulse_counter
pin: GPIO5
unit_of_measurement: 'Liter'
name: 'Water Meter'
update_interval: 60s
filters:
- multiply: 0.1
I als want to count the daily use of water. And a beautify graph to show the use of water for a longer periode.
Can someone share his config? Basic config will be fine.
Is there someone how can share his config for the dutch water meter?
My code at the moment. And its not working 
esphome:
name: sensor_01
platform: ESP8266
board: esp12e
wifi:
ssid: "#####"
password: "####"
# Enable logging
logger:
level: DEBUG
# Enable Home Assistant API
api:
password: "####"
ota:
password: "####"
sensor:
- platform: pulse_counter
pin: GPIO5
unit_of_measurement: 'Liter '
name: 'Water meter'
id: pulse
update_interval: 60s
filters:
- multiply: 0.0001
- platform: template
name: "Water meter totaal"
unit_of_measurement: 'Ltr'
lambda: |-
static float total_value = 0.0;
total_value += id(pulse).state / 1000;
return total_value;
- platform: integration
name: "Water total"
sensor: pulse
time_unit: min
- platform: pulse_counter
id: water_pulse
pin: GPIO5
internal: true
name: "Water Counter 2"
update_interval: 60s
filters:
lambda: |-
static float total_pulses = 0.0;
total_pulses += x * 1 / 60.0;
id(lifetime_counter).publish_state(total_pulses / 17);
return x ;
- platform: template
id: lifetime_counter
name: "Water Total 2"
unit_of_measurement: "L"
- platform: template
name: "Water Flow 2"
id: water_flow_rate
accuracy_decimals: 1
unit_of_measurement: "L/min"
icon: "mdi:water"
lambda: return (id(water_pulse).state /17);
update_interval: 60s
Needed:
- Daily Ltr
- M3 overall
Don’t need any use per min
Just want to check how many my family is using.
Or how much water is used to fill up the swimming pool
let’s kick an verry old topic 
But did you solve this ? Running against the same troubles
It is still not working yet in my case.
My code is not working.
Any solution?
haha busy for years now 
i’ve got no solution.
I was looking for a code like your’s , but if it’s not working i can’t use it .
tried a few thing to solve it.
What’s the lastest code you’re using nowdays ?
The code I posted about years ago… approximately 17-sept-2019 
sept 17
17 sept
and nothing changed 
you’ve got a wong / not working code for year’s
hope somebody can / will help us ?
There are other threads about pulse driven meters. Use the search.